ARLINGTON, VA - NOVEMBER 30: Secretary of Defense Robert M. Gates arrives for a briefing at the Pentagon on the military's "Don't Ask, Don't Tell" policy November 30, 2010 in Arlington, Virginia. ... more

ARLINGTON, VA - NOVEMBER 30: Secretary of Defense Robert M. Gates arrives for a briefing at the Pentagon on the military's "Don't Ask, Don't Tell" policy November 30, 2010 in Arlington, Virginia. Following completion of a major study by a Pentagon task force, Gates announced that the study indicated that permitting gays and lesbians to serve openly in the U.S. armed forces would have a low risk of harming military readiness. (Photo by Win McNamee/Getty Images) less